Optimization of Modernization of a Single-Family Building in Poland Including Thermal Comfort

Zawada, Bernard; Rucińska, Joanna

doi:10.3390/en14102925

Cited by 5 publications

(4 citation statements)

References 34 publications

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“…It is generally accepted that heat loss through the roof is between 10% and 30%, through the walls is between 20% and 30%, through the windows and the door frames is between 10% and 25%, through the basement is between 3% and 6%, and through ventilation is between 25% and 40% [30]. Thermal modernization processes, therefore, involve the use of appropriate insulation and construction materials and the proper selection of internal installations in modernized buildings [41].…”

Section: Discussionmentioning

confidence: 99%

Renewable Energy Sources in the Processes of Thermal Modernization of Buildings—Selected Aspects in Poland

Moskwa-Bęczkowska

Moskwa²

2022

Energies

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The article presents selected aspects of the energy modernization process of a single-family building, carried out in accordance with the legal regulations of Poland. One of the elements of this process is the use of renewable energy sources in the selection of heat sources. Two variants of thermo-modernization solutions for the tested facility were generated using the CERTO and the Aterm computer program. One was a heat pump, and the second was hybrid, in which the heat pump is supplied with electricity from photovoltaic panels. The key point of considerations was to conduct a comparative analysis of the operating costs of applied solutions. All variants were based on the same output data including the same building materials from which the thermal modernization process was carried out. The only difference was in the use of different types of thermal energy sources. The aim of the article was, therefore, to carry out a comparative analysis of variants of heat sources used in a single-family residential building—heating in a traditional way and through the use of photovoltaic panels and a heat pump. The results of the analysis in the context of benefits obtained from using renewable energy sources for heating residential buildings are discussed. The analysis showed that the simultaneous application of a heat pump and solar collectors in the analyzed building effectively influenced the values of indicators of annual demand for usable, primary, and final energy. The main conclusion of this research is that the amount of final energy demand in the analyzed case decreased from 86.04 kWh/(m2/year) with natural gas to 40.46 kWh/(m2/year) with a heat pump and a solar collector.

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Section: Discussionmentioning

confidence: 99%

Renewable Energy Sources in the Processes of Thermal Modernization of Buildings—Selected Aspects in Poland

Moskwa-Bęczkowska

Moskwa²

2022

Energies

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“…As far as Poland is concerned, case studies of thermal modernisations have been published recently, such as of single family [28,29], multifamily [30], school [31] and other educational [32] buildings. In addition, several analyses based on larger groups of objects have been conducted, but most of them for east or north-east Poland.…”

Section: Literature Reviewmentioning

confidence: 99%

Audit-Based Energy Performance Analysis of Multifamily Buildings in South-East Poland

2023

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Multifamily buildings account for about half of all residential buildings in Poland and about 70% of the urban population live in them. Most of them require thermal refurbishment. Evaluation of a building’s energy performance with the use of correlation models has been very rarely used in relation to buildings in Poland. This method is simple, fast and can improve the decision process on thermal modernisation. It is especially important at the pre-design stage of planned investments. This paper presents an attempt to develop correlations that could be used in the energy assessment of multifamily buildings. For this purpose a dataset containing of 29 audits of multifamily buildings was used. The statistical analysis was performed for buildings before and after planned refurbishment. Obtained relationships showed strong correlation between thermal demand for space heating or domestic hot water and ventilation airflow and thermal transmittance of windows (R2 > 0.6). After designed modernisation the number of strong correlations decreased. Energy for domestic hot water was correlated with the number of inhabitants (R2 = 0.6). Energy for space heating was correlated with the number of users and heated volume of a building.

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“…In publications on the impact of thermal modernization on energy savings in buildings of various types in the last 2-3 years, the results of energy efficiency improvements with the use of thermal modernization are most often presented in the works [24][25][26], along with the use of modernization of conventional heat sources with the use of renewable sources of energy, e.g., in hybrid systems [26][27][28]. An assessment of real energy effects was made on the basis of measurements carried out during the 4-year period of operation.…”

Section: Literature Reviewmentioning

confidence: 99%

Thermomodernization as a Mechanism for Improving Energy Efficiency and Reducing Emissions of Pollutants into the Atmosphere in a Public Utility Building

Szczotka

Barwińska-Małajowicz²,

Szymiczek

et al. 2023

Energies

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Improving energy efficiency indicators and reasonable use of energy resources in the context of the increasing demand for energy are sectors that must definitely be paid attention to. The fight against climate change must start in the construction sector, as buildings are the main consumers of energy. Saving energy through the rational use of energy sources and good thermal insulation of buildings allows you to reduce the amount of heating and/or cooling bills as well as to care for the environment by reducing emissions. This article presents aspects of improving the energy efficiency of a health clinic building in Mszana Dolna through the use of comprehensive thermal modernization of the external envelope. Thermal modernization of the most energy-intensive and leaky external partitions in the building, i.e., the external walls below and above the ground and the ventilated flat roof, managed to save 53% of the building’s thermal energy, which directly translates into lowering the building’s operating costs. We managed to achieve an improvement in energy efficiency ratios from 37% to almost 60%, and a reduction in CO2 emissions at a level of nearly 50%.

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Optimization of Modernization of a Single-Family Building in Poland Including Thermal Comfort

Cited by 5 publications

References 34 publications

Renewable Energy Sources in the Processes of Thermal Modernization of Buildings—Selected Aspects in Poland

Renewable Energy Sources in the Processes of Thermal Modernization of Buildings—Selected Aspects in Poland

Audit-Based Energy Performance Analysis of Multifamily Buildings in South-East Poland

Thermomodernization as a Mechanism for Improving Energy Efficiency and Reducing Emissions of Pollutants into the Atmosphere in a Public Utility Building

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